Finding the Fourth Proportional to 846,961,648.02, 1,168,444,519.80 and 528,869,658.09
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Solution
The fourth proportional to 846,961,648.02, 1,168,444,519.80 and 528,869,658.09 is: 729,613,737.68
Step by Step Solution
- Step 1: Write the proportion equation
846,961,648.02 : 1,168,444,519.80 = 528,869,658.09 : x - Step 2: Convert to fraction form
846,961,648.02/1,168,444,519.80 = 528,869,658.09/x - Step 3: Cross multiply
846,961,648.02x = 1,168,444,519.80 × 528,869,658.09 - Step 4: Simplify right side
846,961,648.02x = 617,954,853,683,760,128 - Step 5: Solve for x
x = 617,954,853,683,760,128/846,961,648.02 - Step 6: Final answer
x = 729,613,737.68
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.